The National Health Interview Survey (NHIS) is a primary source of information on the health of the population of the United States. The NHIS is a cross-sectional household interview survey that is fielded continuously throughout the year.

A core questionnaire collected data on topics such as injuries, diseases, conditions, disability, limitation of activity, doctor visits, hospitalization, and demographic information such as housing, family composition, income, etc. The supplement questionnaire for the 1989 NHIS included eight topics: dental care, diabetes, digestive disorders, health insurance, immunization, mental health, orofacial pain, and HIV/AIDS knowledge and attitudes. The 1988-1989 Teenage Attitudes and Practices Survey was conducted as a follow up to the 1989 NHIS.

National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention (CDC), US Census Bureau. United States National Health Interview Survey 1989. Hyattsville, United States: National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention (CDC).